package day4;

/**
 * @author oldliu
 * @since 1.0
 */
//圆
public class Circle {
  double radius;
  int x,y;

  public double area(){
      double mianji=radius*radius*3.14;

      System.out.println("面积是："+mianji+",坐标是:"+this.x+","+this.y);
      return mianji;
  }
  public double zhouchang(){
      double x=2*radius*3.14;
      System.out.println(x);
      System.out.println(this.x);
      return x;
  }
}
